Is the Chevrolet Impala reliable?

Generally reliable for a full‑size sedan, the Chevrolet Impala has earned a reputation for durability across many years. Reliability varies by generation and maintenance history, and with production ending in 2020, most buyers today are looking at used examples whose condition hinges on how well they were cared for.

Reliability by generation

The Impala’s reliability narrative shifts with its major redesigns. Below is a high-level look at what tends to influence dependability across its generations.

• Early to mid-generation models were praised for simple, robust basic engineering and long engine life when regularly serviced.


• Mid‑career models introduced more features and technology; overall reliability remained solid, but some owners reported wear-related issues as miles climbed.


• Last-generation Impalas offered modern safety and tech options; overall reliability is generally considered good for a large sedan, though electronic systems and aging components can surface as the car ages.


• Because production ended after 2020, reliability data for the Impala now comes mainly from used-vehicle ownership experiences and recalls rather than new-model testing.

In practice, you’ll see the strongest reliability in well‑maintained examples with complete service histories, and variability in models that have higher mileage or inconsistent upkeep.

Pros and Cons

Owners and reviewers frequently cite a balance of comfort, practicality, and cost of ownership, tempered by the realities of aging technology in older examples. The following list captures the common strengths and caveats reported across generations.

• Pros:
  
  
  
  • Spacious interior with ample rear-seat legroom and a generous trunk.
  
  
  • Smooth highway ride and comfortable seating for long trips.
  
  
  • Legacy engines and simple mechanical design in many years, which can translate to straightforward maintenance.
  
  
  • Good value in the used-car market relative to newer, similarly equipped sedans.
  
  
  • Strong aftermarket support and easy access to common replacement parts.
  
  
  
  


• Cons:
  
  
  
  • Fuel economy is generally lower than many modern midsize sedans, especially with V6 powertrains.
  
  
  • Aging electrical systems and infotainment setups can be temperamental in older units.
  
  
  • Some high-mileage examples may require costly repairs to suspension, cooling, or drivetrain components.
  
  
  • Depreciation is pronounced, and parts for very high-mileage units may become harder to source as vehicles age.
  
  
  
  

Overall, the Impala offers a compelling blend of space, ride comfort, and practicality, with reliability that remains competitive for its class when the vehicle has been properly maintained.

What to check when buying a used Impala

If you’re shopping for a used Impala, focus on maintenance history, recall status, and signs of wear that commonly appear with aging GM sedans. The checks below help assess reliability potential in a used example.

1. Review full maintenance records and confirm all recalls have been addressed by a dealer or qualified shop.


2. Test drive to evaluate transmission behavior: smooth shifting, no slipping, and no unexpected harsh engagement in both city and highway speeds.


3. Inspect for oil leaks, coolant leaks, and signs of overheating; pay attention to the engine bay and undercarriage for staining or crusted residues.


4. Check the cooling system (radiator, hoses, water pump) for leaks or soft hoses, which are common aging issues.


5. Listen for abnormal noises in the suspension, steering, or exhaust during a test drive; look for excessive bouncing or alignment pulling.


6. Verify brakes, tires, and steering components are in good condition; review any past brake or rotor replacements and alignment records.


7. Examine the electrical system and infotainment: screen responsiveness, Bluetooth/connectivity, and warning lights on the dash.


8. Inspect the body and frame for rust or collision repair history, especially on older examples with higher mileage.

Careful inspection and a thorough pre-purchase check can help you choose a reliable Impala and avoid common trouble spots.

Maintenance tips to maximize reliability

Regular, proactive maintenance is the best way to keep an Impala reliable as it ages. The following practices are widely recommended by technicians and owners alike.

• Adhere to the recommended oil-change interval with quality oil; monitor oil level and consumption, especially in high-mileage engines.


• Follow manufacturer guidelines for transmission fluid changes and filter replacement where applicable, and address any fluid leaks promptly.


• Maintain the cooling system: regular coolant replacement, hose inspections, and radiator checks to prevent overheating.


• Schedule routine brake service, including pad/rotor replacement and fluid checks, to ensure reliable stopping performance.


• Inspect and replace worn suspension components (ball joints, bushings, shocks) before they cause handling issues or uneven tire wear.


• Keep the battery and charging system in good order; replace aging batteries to prevent roadside failures.


• Address recalls and updates promptly; stay informed about any service campaigns related to electronics or safety features.

Following these maintenance practices can help maximize the Impala’s reliability and keep ownership costs more predictable over time.

Summary

The Chevrolet Impala remains a dependable choice in the used full-size sedan market, with reliability that depends heavily on model year and maintenance history. While newer generations offer improved safety and tech, aging units can present electrical and mechanical challenges. Pros include spacious interiors, comfortable rides, and good value, while cons center on fuel economy and potential aging-system repairs. For prospective buyers, thorough pre-purchase checks, complete recall records, and a disciplined maintenance routine are key to a reliable ownership experience.

Bottom line

In short, yes—the Impala is generally reliable when well maintained, but reliability varies by year and care. If you’re considering one today, prioritize a well-documented service history, confirm recalls are completed, and shop for a vehicle with solid cosmetic and mechanical condition to maximize your odds of long-term dependability.

How long does a Chevy Impala last?

The Chevrolet Impala has an average lifespan of 135,717 miles or about 8.7 years. The Impala's predicted lifespan is derived from over 300 million data points iSeeCars analyzed to determine this model's average lifespan.

What is the common problem with Chevy Impala?

Common problems with the Chevy Impala include transmission issues like failure and erratic shifting, particularly in older models, as well as engine concerns such as oil consumption and leaks from the intake manifold gasket. Other frequent complaints involve power steering leaks, steering system noises, and various electronics problems, including with the power locks and instrument panel. 
Engine and fuel system

• Oil consumption: Some models are known to burn excessive oil, which can be caused by worn piston rings or faulty valve seals. 
• Oil leaks: Leaks from the intake manifold gasket are a known issue. 
• Check Engine light: The "Check Engine" light can come on due to a loose gas cap or faulty mass air flow sensor. 
• Fuel gauge issues: Some owners report a fluctuating or inaccurate fuel gauge. 

This video explains some of the common problems with Chevy Impalas: 55sCars of QueensYouTube · May 27, 2021
Transmission and drivetrain

• Transmission failure/slipping: This is a very common problem, especially in models from the early to mid-2000s. 
• Erratic shifting: The transmission pressure control solenoid can fail, causing shifting problems. 
• Shifter issues: The ignition key can become stuck if the shifter fails. 

Steering and suspension

• Power steering leaks: Leaks in the high-pressure power steering hose can occur.
• Steering noises: A clunking noise from the upper intermediate steering shaft is a common complaint. 

Electrical and other issues

• Power locks: Power lock actuators can fail. 
• Heater problems: The heater system can experience issues. 
• Instrument panel problems: The speedometer and other gauges may work erratically. 
• Security system fault: Some models have issues with the security system causing the engine to stall after starting. 
• Body and interior: Wind noise, leaks around seals and weatherstripping, and problems with windows, locks, and latches have been reported. 

What year is Impala not to buy?

2006-2008 Impala
The ninth-generation Impala, produced between 2006 and 2013, faced significant reliability issues, particularly in the early years. While it offered some improvements over previous models, the 2006-2008 models were plagued by recurring mechanical problems, leading to numerous complaints and recalls.

Is the Chevy Impala a dependable car?

Chevrolet Impala Reliability Rating Breakdown. The Chevrolet Impala Reliability Rating is 4.0 out of 5.0, which ranks it 5th out of 12 for fullsize cars. The average annual repair cost is $568 which means it has average ownership costs.